Need a variable port telnet server

[umbletech]

Hi All

I'd like a way to test open port before the servers are in place. So what I want is a util that will run on a 2000 or XP laptop and accept telnet connections on any port you set.

Seems very useful - surely it must exist. Would love something that worked for UDP as well but if just TCP that's fine.

 

[John Lewis]

You can use telnet to connect to nearly any service that uses a TCP port. It is not necessary, and may cause some problems, to run a telnet server on a port that will at some point be used for another service. Most servers will not provide a login prompt, but a blank screen with a cursor in the upper left indicates that you are connected to the port. If the connection is not successful, you will receive some sort of error message.

A better solution is to use the Microsoft portqry command, which must be downloaded. Allows for testing of UDP ports as well as TCP and gives a bit more information to help track the problem sometimes. See

http://support.microsoft.com/default.aspx?scid=kb;en-us;310099.

The UI version will install the command line version as well and is a bit easier than the command line version on its own.

Runs on 2K or XP. It is a bit buggy -- crashes from time to time, but when it works it is a good thing to have.

 

[umbletech]

Thx but my problem was not portscanning - it was having a service to portscan.So for the Kbase: Somebody on another list suggested - run up IIS on the lappie - coz you can change the default port to anything. Like all great ideas - SIMPLE - I'm kicking myself ;-)